object

Multidimensional array to object, specific way

由 北城以北 提交于 2020-01-01 12:10:06
问题 I know this type of question has been asked a lot, but I haven't found out how to do it like I want it to be. So, basically I have this array. array(7) { ["site"]=> array(5) { ["production"]=> bool(false) ["url"]=> string(29) "http://localhost/" ["name"]=> string(6) "Sitename" ["title"]=> string(7) ": Index" ["pagedata"]=> array(1) { ["default"]=> string(5) "Index" } } ["DB"]=> array(5) { ["host"]=> string(9) "localhost" ["user"]=> string(4) "root" ["pass"]=> string(4) "secret" ["database"]=>

Java中clone的写法

由 帅比萌擦擦* 提交于 2020-01-01 10:57:42
Cloneable 这个接口设计得十分奇葩，不符合正常人的使用习惯，然而用这个接口的人很多也很有必要，所以还是有必要了解一下这套扭曲的机制。以下内容来自于对 Effective Java ed 2. item 11 的整理。 Cloneable接口 首先， Cloneable 接口中并没有方法。它的存在意义一是让程序员 注明当前对象可以clone ，二是 改变父类 Object 类中 clone 方法的行为 ：如果某个类实现了 Cloneable ，那么它的父类 Object 的 clone 方法可以调用，否则会抛出CloneNotSupportedException。(奇葩吧) 也就是说，如果我们要告诉用户，这个类是可以clone的，并且在我们的实现中需要调用 super.clone ，那么我们就必须实现 Cloneable 。 （然而，即使某个类实现了 Cloneable ，也不一定保证它就有 clone 方法，这是这个接口设计的奇葩之处之一， 设计者可能是反社会吧 ） 我们的clone方法 需要重写clone方法的情况分为两类。 　　　　1：需要实现 Cloneable 接口。 　　　　2：只需要重写 clone 方法。 其中，第一种情况比较普遍。第二种可以看作为了讨论的完整性对第一种进行的补充。 需要实现 Cloneable接口 考虑到 clone 方法是直接给用户用的

Why is hasOwnProperty being invoked generically here?

由 空扰寡人 提交于 2020-01-01 10:56:08
问题 The following function is mentioned in Speaking Javascript: An In-Depth Guide for Programmers by Axel Rauschmayer: function getDefiningObject(obj, propKey) { obj = Object(obj); // make sure it’s an object while (obj && !{}.hasOwnProperty.call(obj, propKey)) { obj = Object.getPrototypeOf(obj); // obj is null if we have reached the end } return obj; } Its purpose, as the author puts it, is "to [iterate] over the property chain of an object obj [and return] the first object that has an own

Comparing objects in ruby

由 好久不见. 提交于 2020-01-01 10:07:05
问题 Consider this: class Aaa attr_accessor :a, :b end x = Aaa.new x.a, x.b = 1,2 y = Aaa.new y.a, y.b = 1,2 puts x == y #=>false Is there some way to check if all public attributes are equal in classes of same type? 回答1: class Aaa attr_accessor :a, :b def ==(other) return self.a == other.a && self.b == other.b end end x = Aaa.new x.a,x.b = 1,2 y = Aaa.new y.a,y.b = 1,2 y = Aaa.new y.a,y.b = 1,2 z = Aaa.new z.a,z.b = 1,3 x == y # => true x == z # => false 回答2: Aaa = Struct.new(:a, :b) x = Aaa.new

Comparing objects in ruby

由 霸气de小男生 提交于 2020-01-01 10:07:03
问题 Consider this: class Aaa attr_accessor :a, :b end x = Aaa.new x.a, x.b = 1,2 y = Aaa.new y.a, y.b = 1,2 puts x == y #=>false Is there some way to check if all public attributes are equal in classes of same type? 回答1: class Aaa attr_accessor :a, :b def ==(other) return self.a == other.a && self.b == other.b end end x = Aaa.new x.a,x.b = 1,2 y = Aaa.new y.a,y.b = 1,2 y = Aaa.new y.a,y.b = 1,2 z = Aaa.new z.a,z.b = 1,3 x == y # => true x == z # => false 回答2: Aaa = Struct.new(:a, :b) x = Aaa.new

Good resource to learn “PRACTICAL” OOP? [closed]

由 僤鯓⒐⒋嵵緔 提交于 2020-01-01 09:40:11
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . This might sound like a silly question, because if you Google "OOPS" or "OOPS in C#" you get tons of results. But. I am aware of concepts of OOP like abstraction , inheritance and what not... But what I want to see is some " practical usable example " of it in programming. Like for polymorphism you know a

Reverse object in jQuery.each

由 半城伤御伤魂 提交于 2020-01-01 08:46:52
问题 HTML: <input id="sdata" type="hidden" value='{"1651":["12","1"],"1650":["30","0"],"1649":["20","0"],"1648":["13","2"],"1647":["11","0"],"1646":["10","0"],"1645":["12","0"],"1644":["8","0"],"1643":["16","1"],"1642":["10","1"],"1641":["10","0"],"1640":["18","3"]}' /> JS: var data = $.parseJSON($('#sdata').val()); $.each(data, function(id, sc) { alert(id); } OUT: 1640, 1641, 1642, ..., 1651 How to make it in reverse order (ex. 1651, 1650...)? 回答1: As it is, you can't in any reliable manner.

Convert Object of class stdClass to JSON Object

由 你。 提交于 2020-01-01 08:38:27
问题 this is what i have in my php file: $session = $m->session; $session is now: object(stdClass)[31] public 'id' => string '21112' (length=5) public 'external_id' => string '' (length=0) public 'sessiongroupid' => string '1843' (length=4) public 'eventid' => string '5588' (length=4) public 'order' => string '0' (length=1) public 'name' => string 'Ferdau Conference' (length=17) public 'description' => string 'Ferdau Conference' (length=17) public 'starttime' => string '2013-04-18 18:00:00'

What's the fastest way to compare two objects in PHP?

由 与世无争的帅哥 提交于 2020-01-01 08:33:20
问题 Let's say I have an object - a User object in this case - and I'd like to be able to track changes to with a separate class. The User object should not have to change it's behavior in any way for this to happen. Therefore, my separate class creates a "clean" copy of it, stores it somewhere locally, and then later can compare the User object to the original version to see if anything changed during its lifespan. Is there a function, a pattern, or anything that can quickly compare the two

What's the fastest way to compare two objects in PHP?

由 别等时光非礼了梦想. 提交于 2020-01-01 08:33:11
问题 Let's say I have an object - a User object in this case - and I'd like to be able to track changes to with a separate class. The User object should not have to change it's behavior in any way for this to happen. Therefore, my separate class creates a "clean" copy of it, stores it somewhere locally, and then later can compare the User object to the original version to see if anything changed during its lifespan. Is there a function, a pattern, or anything that can quickly compare the two
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